assassin," including his examination of the four people who have successfully assassinated u.s. presidents. it's about 40 minutes. >> so a couple, let me count it, one, two, three, four, five -- fourteen days ago in new york city we broke the guinness world record. we were trying to break the guinness world record for most secret decoder rings used in one place. that is the nerdest thing you can do with your -- nerdiest thing you can do with your time ever. we broke the record, it was great. nothing was nerdier except being in a bookstore on a friday night, people, okay? [laughter] so just, i pity all of us really, all of us. um, i want to say the most important thing of all. it will be, i promise, the most important thing i will say tonight, and that is thank you. everything i say after that will be straight downhill, and i'll tell you, i'll save some of the specific thank yous for the end. what we're here to talk about is "the fifth assassin," and people always say where do you get your ideas for books? i'll tell you about this store. because of dakota, no one gets crazier mail than me.